Standard methods used for calibration 

Calliper Check Plate

Using standard measurement plan on ZCalliper eiss Prismo CMM with Calypso software and comparison to gauge block or length bars.

Dial Gauge Indicator

Per standard or manufacturers specification using micrometer head and/or gauge blocks.

Dial Protractor

Using standard measurement plan on Zeiss Prismo CMM with Calypso software and comparison to angle standard.

Internal Micrometer

Per standard or manufacturers specification comparing micrometer to gauge blocks and/or length bars using electronic probe and amplifier.

Miscellaneous

Developed as needed to suit specific measurement task.

Screw Plug Gauge

Using IAC Master Scanner CNC thread gauge calibration machine with manufacturers procedure.

Plain Plug Gauge

Using comparrison to reference cylinders or gauge blocks and depending on size and gauge tolerance one of the following is chosen: Accutron Comparator, Floating Carriage Micrometer, Zeiss Prismo CMM or IAC Masterscanner.

Taper Screw/Plain Ring Gauge - R series

Using IAC Master Scanner CNC thread gauge calibration machine or Zeiss Prismo CMM with manufacturers procedure.

Taper Screw Plug Gauge RC 

Using IAC Master Scanner CNC thread gauge calibration machine with manufacturers procedure.

Taper Screw Ring Gauge NPT/NPTF

Using IAC Master Scanner CNC thread gauge calibration machine with manufacturers procedure.

Taper Screw Plug Gauge NPT/NPTF

Using IAC Master Scanner CNC thread gauge calibration machine with manufacturers procedure.

Screw Roller Calliper Gauge

Per AS 1098 using Setting plug gauges or thread measuring cylinders and/or gauge blocks.

Screw Ring Gauge

Using screw thread and plain check plug gauges if available or IAC Master Scanner CNC thread gauge calibration machine with manufacturers procedure.

Plain/Setting Ring/Setting Disc

Using standard measurement plan on Zeiss Prismo CMM with Calypso software and comparison to cylindrical standard.

Micrometer Check Set

Using Acutron comparator,compare plain cylinders to cylindrical standards, for stepped cylinders a standard measurement plan on Zeiss Prismo CMM with Calypso software and comparison to cylindrical standard is used.

Taper Screw Plug Gauge - NGT

Using IAC Master Scanner CNC thread gauge calibration machine with manufacturers procedure.

Precision Set Square

Using standard measurement plan on Zeiss Prismo CMM with Calypso software.

Surface Plate

For off site work - using Talyron levels and standard "union Jack" measruement pattern For on site work in SGP lab Zeiss prismo CMM used in a standard union Jack.

Vernier Calliper

Dependant on which national standard is applied a combination of the following are used. Flatness of faces, parallelism of faces and depth feature calibrated using surfae plate,angle plate and gauge blocks with electronic probe and amplifier. Scale compared with calliper checker.

External Micrometer

Using AS or JIS standard as a guide, micrometer is compared with optical flats, gauge blocks and/or length bars and/or Micrometer setting bars.

Depth Micrometer

Compare with optical flat and gauge blocks or length bars using precision height fixture.

Vernier Height Gauge

Compare with gauge blocks/length bars using electronic probe and amplifier or Zeiss Prismo CMM with reference to gauge blocks.

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